哲学家就餐问题（整理）

哲学家就餐问题（整理）的几个总结WaitForSingleObject(mutex, INFINITE); cout << "philosopher " << myid << " begin......" << endl; ReleaseMutex(mutex); //初始状态为THINKING mystate = THINKING; leftFork = (myid) % PHILOSOPHER_NUM; rightFork = (myid + 1) % PHILOSOPHER_NUM; while (true) { switch(mystate) { case THINKING: // 改变状态 mystate = HUNGRY; strcpy(stateStr, "HUNGRY"); break; case HUNGRY: strcpy(stateStr, "HUNGRY"); // 先检查左筷子是否可用 ret = WaitForSingleObject(semaphore[leftFork], 0); if (ret == WAIT_OBJECT_0) { //左筷子可用就拿起，再检查右筷子是否可用 ret = WaitForSingleObject(semaphore[rightFork], 0); } break; case DINING: // 吃完后把两支筷子都放下 ReleaseSemaphore(semaphore[leftFork], 1, NULL); ReleaseSemaphore(semaphore[rightFork], 1, NULL); // 改变自己的状态 mystate = THINKING; strcpy(stateStr, "THINKING"); break; } // 输出状态 WaitForSingleObject(mutex, INFINITE); cout << "philosopher " << myid << " is : " << stateStr << endl; ReleaseMutex(mutex);